GET

/v1/schemas/fal/chat/openrouter/router?kind=output

Accept:

kind outputactivity chathash 0b9fd1e6…extracted Jul 6, 2026version currentsource upstream spec ↗

field	recorded source
schema	Source linked above. Source trace `5b8b68ff0919f7e77478ea5b03f7728762ed7e76822b6bf45e1d1c9334f7a962` { "fetchedAt": 1783328807, "extractorVersion": "1", "verifiedAt": null }

Response body

5 properties · 1 required · 2 $defs

property	type	description	constraints
output*	string	Generated output
partial	boolean	Whether the output is partial	default: false
error	string	Error message if an error occurred	nullable
usage	UsageInfo	Token usage information	nullable
reasoning	string	Generated reasoning for the final answer	nullable

Types

2 $defs

PromptTokensDetailsobject

cached_tokens	integer		default: 0
cache_write_tokens	integer		default: 0

UsageInfoobject

prompt_tokens_details	PromptTokensDetails	nullable
cost*	number
completion_tokens	integer	nullable
total_tokens	integer	default: 0
prompt_tokens	integer	nullable

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"openrouter/router","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}